First demonstration of vertically-stacked Gate-All-Around highly-strained Germanium nanowire p-FETs

  • E. Capogreco
  • , L. Witters
  • , H. Arimura
  • , F. Sebaai
  • , C. Porret
  • , A. Hikavyy
  • , R. Loo
  • , A. P. Milenin
  • , G. Eneman
  • , P. Favia
  • , H. Bender
  • , K. Wostyn
  • , E. Dentoni Litta
  • , A. Schulze
  • , C. Vrancken
  • , A. Opdebeeck
  • , J. Mitard
  • , R. Langer
  • , F. Holsteyns
  • , N. Waldron
  • K. Barla, V. De Heyn, D. Mocuta, N. Collaert

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

This paper reports on strained p-type Ge Gate-All-Around (GAA) devices on 300mm SiGe Strain-Relaxed-Buffers (SRB) with improved performance as compared to our previous work. The Q factor is increased to 25, Ion=500μA/μm at Ioff=100nA/μm is achieved, approaching the best published results on Ge finFETs. Good NBTI reliability is also maintained. By using the process flow developed for the single nanowire (NW), vertically stacked strained Ge NWs featuring 8nm channel diameter are demonstrated for the first time. A systematic analysis of the strain evolution is conducted on both single and double Ge NWs, demonstrating for the first time 1.7GPa uniaxial-stress along the Ge wire, which originates from the lattice mismatch between the Ge S/D and the Si0.3Ge0.7 SRB.

Original languageEnglish
Title of host publication2018 IEEE Symposium on VLSI Technology, VLSI Technology 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages191-194
Number of pages4
ISBN (Electronic)9781538642160
DOIs
Publication statusPublished - 25 Oct 2018
Externally publishedYes
Event38th IEEE Symposium on VLSI Technology, VLSI Technology 2018 - Honolulu, United States
Duration: 18 Jun 201822 Jun 2018

Publication series

NameDigest of Technical Papers - Symposium on VLSI Technology
Volume2018-June
ISSN (Print)0743-1562

Conference

Conference38th IEEE Symposium on VLSI Technology, VLSI Technology 2018
Country/TerritoryUnited States
CityHonolulu
Period18/06/1822/06/18

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